A) 50 B) 60 C) 51 D) 23
A) 7 B) 1 C) 17 D) 3
A) 9 B) 5 C) 103 D) 45
A) 3 B) 15 C) 33 D) 4
A) Transition Metals B) Alkali Metals C) Halogens D) Alkaline Earth Metals E) Noble Gases
A) 14 B) 2 C) 14.007 D) 7
A) 2 B) 56 C) 137 D) 6
A) 6 B) 1 C) 2 D) 7
A) Tellurium is a solid metalloid. B) Mercury is a solid metal. C) Chlorine is a liquid non-metal. D) Phosphorus is a non-metal gas.
A) 6 B) 96 C) 5 D) 42
A) 2 B) 3 C) 4 D) 7
A) proton/+, electron/-, neutron/uncharged B) proton/+, neutron/-, electron/no charge C) proton/-, electron/+, neutron/no charge D) proton/+, electron/neutral, neutron/-
A) protons and electrons B) protons and orbits C) protons and neutrons D) neutrons and electrons
A) Carbon and Boron B) Phosphorus and Silicon C) Argon and Krypton D) Mercury and Thallium
A) atoms are tiny solid spheres B) electrons orbit totally randomly around the nucleus C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) nucleus B) group C) region D) period
A) Lithium B) Chlorine C) Magnesium D) Beryllium
A) number of protons B) period number C) number of neutrons D) group number
A) the same as the number of energy levels B) the mass number minus the atomic number C) greater than the mass number D) the same as the number of electrons
A) Number of Neutrons B) Period Number C) Group Number D) State of Matter
A) Nitrogen B) Carbon C) Manganese D) Francium
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) By adding or losing electrons B) by adding protons C) by adding electrons D) by losing protons
A) by losing electrons B) by losing protons C) by adding electrons D) by adding protons
A) by losing protons B) by adding electrons C) by adding protons D) by losing electrons
A) by adding neutrons B) by adding electrons C) by adding or losing neutrons D) by adding protons
A) mass number divided by 2 B) same as the mass number C) difference between the atomic and mass number D) same as the atomic number
A) the difference between the mass and atomic number B) the same as the number of neutrons C) the same as the mass number D) the same as the atomic number
A) Na and Li B) B and O C) Hg and C D) Mg and F
A) Li and Po B) Mg and Cl C) Ba and Ra D) F and At
A) The transition metals B) The alkali earth metals C) The halogens D) The alkali metals E) The noble gases
A) The halogens B) The alkali metals C) The transition metals D) The noble gases
A) 1 B) 18 C) 17 D) 8 E) 4
A) how many protons there are B) how many electron levels there are C) how reactive they are D) how many electrons there are
A) how many electrons the atom has B) the number of neutrons C) the number of protons D) how many valence electrons the atom has
A) Silver B) Sodium C) Iron D) Fluorine E) Mercury
A) H B) F C) Al D) Li E) Au
A) Cs B) Al C) I D) Mg E) Li
A) the number of protons B) the number of neutrons C) the number of electrons
A) Dalton B) Newton C) Lewis D) Mendeleev E) Bohr |